128859145

素因数分解:

$5^1\times {\mathrm{61}}^1\times {\mathrm{271}}^1\times {\mathrm{1559}}^1$

素因数の和:1896

約数の個数: 16

約数和(自身を含む): 157847040

約数和(自身を除く): 28987895

約数列:

[1, 5, 61, 271, 305, 1355, 1559, 7795, 16531, 82655, 95099, 422489, 475495, 2112445, 25771829, 128859145]

約数ペア:

[(1, 128859145), (5, 25771829), (61, 2112445), (271, 475495), (305, 422489), (1355, 95099), (1559, 82655), (7795, 16531)]